Ioannis A. Daglis is professor of space physics at the National and Kapodistrian University of Athens (Department of Physics). Before his appointment at the University of Athens, he was the director of the Institute for Space Applications and Remote Sensing (ISARS) for six years (2006-2012) and the director of the Institute for Astronomy, Astrophysics, Space Applications and Remote Sensing (IAASARS) for one year (2012-2013). His scientific expertise pertains to solar system astrophysics and space applications.

He has been a co-investigator of the NASA space missions SAC-B, Polar and THEMIS, and of the ESA space mission BepiColombo. He has been the scientific representative of the SREM instrument on the ESA mission Rosetta, and science team member of the NASA missions AMPTE, CRRES, Geotail and of the ESA mission Cluster.

He currently leads the ESA projects G4G (Geant4-based Particle Simulation Facility in Greece for Future Science Mission Support) and HERMES (Hellenic Evolution of Radiation data processing and Modelling of the Environment in Space). He further leads the Greek participation in EPN2020-RI (Europlanet 2020 Research Infrastructure), which addresses key scientific and technological challenges facing modern planetary science, and is the Coordinator of the South-Eastern Europe Europlanet Society Hub. Among others, Prof. Daglis has led the European Union FP7-Space collaborative research programme MAARBLE (in 2012-2014), which shed light on how electromagnetic waves in geospace influence the dynamic evolution of the Earth's radiation belts, and the ESA study SRREMs (in 2011-2014), which developed models of the radiation belts with an emphasis to the slot region.

Prof. Daglis served as a Member of ESA's advisory Solar System Working Group(2005-2010), as the National Delegate of Greece at the Programme Committee of thematic priority "Space" of the 7th RTD Framework Programme of the European Commission (2006-2009 and 2012-2013); as Board Member of the Greek Research & Technology Network S.A. (2004-2014); as Head of the Greek Delegation to the joint EC/ESA High-Level European Space Policy Group (2004-2008); and as Delegate of Greece to the Council of the European Space Agency (2013-2017).

He has also served as evaluation expert for the US National Science Foundation (NSF), NASA, Academy of Finland, Research Council of Norway, INTAS, FONDECYT Chile, Greek General Secretariat for Research and Technology, Research Promotion Foundation of Cyprus, New Eurasia Foundation Russia, Greek State Scholarships Foundation (IKY), Canada Foundation for Innovation (CFI) and the European Commission. In particular, Prof. Daglis served as a Member of the NASA Definition Team for the RBSP (Radiation Belt Storm Probes) mission (now Van Allen Probes mission); as the Chairman of the Physics Panel of the Marie Curie Individual Fellowships for 8 consecutive years (2007-2014); and as the Independent Observer of the Marie Curier Individual Fellowships Evaluation in 2016 and 2018.